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periph_conf.h
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1/*
2 * SPDX-FileCopyrightText: 2019 Mesotic SAS
3 * SPDX-License-Identifier: LGPL-2.1-only
4 */
5
6#pragma once
7
18
19#include "periph_cpu.h"
20#include "macros/units.h"
21
22#ifdef __cplusplus
23extern "C" {
24#endif
25
29#define CLOCK_CORECLOCK MHZ(48)
30
35#define USE_VREG_BUCK (1)
36
41static const tc32_conf_t timer_config[] = {
42 { /* Timer 0 - System Clock */
43 .dev = TC0,
44 .irq = TC0_IRQn,
45 .mclk = &MCLK->APBCMASK.reg,
46 .mclk_mask = MCLK_APBCMASK_TC0_Msk | MCLK_APBCMASK_TC1_Msk,
47 .gclk_id = TC0_GCLK_ID,
48 .gclk_src = SAM0_GCLK_TIMER,
49 .flags = TC_CTRLA_MODE_COUNT32,
50 },
51 {
52 .dev = TC2,
53 .irq = TC2_IRQn,
54 .mclk = &MCLK->APBCMASK.reg,
55 .mclk_mask = MCLK_APBCMASK_TC2_Msk | MCLK_APBCMASK_TC3_Msk,
56 .gclk_id = TC2_GCLK_ID,
57 .gclk_src = SAM0_GCLK_TIMER,
58 .flags = TC_CTRLA_MODE_COUNT32,
59 }
60};
61
62/* Timer 0 configuration */
63#define TIMER_0_CHANNELS 2
64#define TIMER_0_ISR isr_tc0
65#define TIMER_1_CHANNELS 2
66#define TIMER_1_ISR isr_tc2
67#define TIMER_NUMOF ARRAY_SIZE(timer_config)
69
74static const uart_conf_t uart_config[] = {
75 { /* Virtual COM Port */
76 .dev = &SERCOM0->USART,
77 .rx_pin = GPIO_PIN(PA, 5),
78 .tx_pin = GPIO_PIN(PA, 4),
79#ifdef MODULE_PERIPH_UART_HW_FC
80 .rts_pin = GPIO_UNDEF,
81 .cts_pin = GPIO_UNDEF,
82#endif
83 .mux = GPIO_MUX_D,
84 .rx_pad = UART_PAD_RX_1,
85 .tx_pad = UART_PAD_TX_0,
86 .flags = UART_FLAG_NONE,
87 .gclk_src = SAM0_GCLK_MAIN,
88 },
89 { /* EXT1 */
90 .dev = &SERCOM3->USART,
91 .rx_pin = GPIO_PIN(PA, 17),
92 .tx_pin = GPIO_PIN(PA, 16),
93#ifdef MODULE_PERIPH_UART_HW_FC
94 .rts_pin = GPIO_UNDEF,
95 .cts_pin = GPIO_UNDEF,
96#endif
97 .mux = GPIO_MUX_D,
98 .rx_pad = UART_PAD_RX_1,
99 .tx_pad = UART_PAD_TX_0,
100 .flags = UART_FLAG_NONE,
101 .gclk_src = SAM0_GCLK_MAIN,
102 }
103};
104
105/* interrupt function name mapping */
106#define UART_0_ISR isr_sercom0
107#define UART_1_ISR isr_sercom3
108
109#define UART_NUMOF ARRAY_SIZE(uart_config)
111
116static const spi_conf_t spi_config[] = {
117 { /* internal, wired to sx1276 */
118 .dev = &(SERCOM4->SPI),
119 .miso_pin = GPIO_PIN(PC, 19),
120 .mosi_pin = GPIO_PIN(PB, 30),
121 .clk_pin = GPIO_PIN(PC, 18),
122 .miso_mux = GPIO_MUX_F,
123 .mosi_mux = GPIO_MUX_F,
124 .clk_mux = GPIO_MUX_F,
125 .miso_pad = SPI_PAD_MISO_0,
126 .mosi_pad = SPI_PAD_MOSI_2_SCK_3,
127 .gclk_src = SAM0_GCLK_MAIN,
128#ifdef MODULE_PERIPH_DMA
129 .tx_trigger = SERCOM4_DMAC_ID_TX,
130 .rx_trigger = SERCOM4_DMAC_ID_RX,
131#endif
132 },
133 { /* EXT1, EXT3, NOR Flash */
134 .dev = &(SERCOM5->SPI),
135 .miso_pin = GPIO_PIN(PB, 2),
136 .mosi_pin = GPIO_PIN(PB, 22),
137 .clk_pin = GPIO_PIN(PB, 23),
138 .miso_mux = GPIO_MUX_D,
139 .mosi_mux = GPIO_MUX_D,
140 .clk_mux = GPIO_MUX_D,
141 .miso_pad = SPI_PAD_MISO_0,
142 .mosi_pad = SPI_PAD_MOSI_2_SCK_3,
143 .gclk_src = SAM0_GCLK_MAIN,
144#ifdef MODULE_PERIPH_DMA
145 .tx_trigger = DMA_TRIGGER_DISABLED,
146 .rx_trigger = DMA_TRIGGER_DISABLED,
147#endif
148 },
149};
150
151#define SPI_NUMOF ARRAY_SIZE(spi_config)
153
158static const i2c_conf_t i2c_config[] = {
159 {
160 .dev = &(SERCOM1->I2CM),
161 .speed = I2C_SPEED_NORMAL,
162 .scl_pin = GPIO_PIN(PA, 17),
163 .sda_pin = GPIO_PIN(PA, 16),
164 .mux = GPIO_MUX_C,
165 .gclk_src = SAM0_GCLK_MAIN,
166 .flags = I2C_FLAG_NONE
167 }
168};
169#define I2C_NUMOF ARRAY_SIZE(i2c_config)
171
176#define EXTERNAL_OSC32_SOURCE 1
177#define INTERNAL_OSC32_SOURCE 0
178#define ULTRA_LOW_POWER_INTERNAL_OSC_SOURCE 0
180
185#ifndef RTT_FREQUENCY
186#define RTT_FREQUENCY (32768U)
187#endif
189
194
195/* ADC 0 Default values */
196#define ADC_PRESCALER ADC_CTRLB_PRESCALER_DIV256
197
198#define ADC_NEG_INPUT ADC_INPUTCTRL_MUXNEG(0x18u)
199#define ADC_REF_DEFAULT ADC_REFCTRL_REFSEL_INTVCC2
200
201static const adc_conf_chan_t adc_channels[] = {
202 /* port, pin, muxpos */
203 { .inputctrl = ADC_INPUTCTRL_MUXPOS_PA06 },
204 { .inputctrl = ADC_INPUTCTRL_MUXPOS_PA07 }
205};
206
207#define ADC_NUMOF ARRAY_SIZE(adc_channels)
209
214static const sam0_common_usb_config_t sam_usbdev_config[] = {
215 {
216 .dm = GPIO_PIN(PA, 24),
217 .dp = GPIO_PIN(PA, 25),
218 .d_mux = GPIO_MUX_G,
219 .device = &USB->DEVICE,
220 .gclk_src = SAM0_GCLK_48MHZ,
221 }
222};
224
225#ifdef __cplusplus
226}
227#endif
228
#define GPIO_PIN(x, y)
Define a CPU specific GPIO pin generator macro.
Definition periph_cpu.h:45
#define GPIO_UNDEF
Definition of a fitting UNDEF value.
@ I2C_SPEED_NORMAL
normal mode: ~100 kbit/s
Definition periph_cpu.h:277
@ UART_PAD_RX_1
select pad 1
@ I2C_FLAG_NONE
No flags set.
@ SPI_PAD_MISO_0
use pad 0 for MISO line
#define DMA_TRIGGER_DISABLED
Indicates that the peripheral doesn't utilize the DMA controller.
@ UART_FLAG_NONE
No flags set.
@ PB
port B
@ PC
port C
@ PA
port A
@ UART_PAD_TX_0
select pad 0
@ GPIO_MUX_D
select peripheral function D
@ GPIO_MUX_G
select peripheral function G
@ GPIO_MUX_C
select peripheral function C
@ GPIO_MUX_F
select peripheral function F
@ SPI_PAD_MOSI_2_SCK_3
use pad 2 for MOSI, pad 3 for SCK
#define ADC_INPUTCTRL_MUXPOS_PA07
Alias for PIN7.
Definition periph_cpu.h:125
#define ADC_INPUTCTRL_MUXPOS_PA06
Alias for PIN6.
Definition periph_cpu.h:124
#define SAM0_GCLK_MAIN
120 MHz main clock
Definition periph_cpu.h:73
#define SAM0_GCLK_TIMER
4-8 MHz clock for xTimer
Definition periph_cpu.h:78
ADC Channel Configuration.
I2C configuration structure.
Definition periph_cpu.h:298
USB peripheral parameters.
SPI device configuration.
Definition periph_cpu.h:336
Timer device configuration.
UART device configuration.
Definition periph_cpu.h:217
Unit helper macros.